Improvement in quartz-crushers



No. 51,586. PATENTED DEC.19`, 1865.

W. W. HANSCOM. AQTMLRTZ GRUSHER.

` Iman/Q2 W//Mww rsRs co., wAsHlNaraN. D, c4

U NITEDA STATES PATENT OFFICE.

W. W. HANSCOM'. OF SAN FRANCISCO, CALIFORNIA.

IM PROVEM'ENT IN l QUAl'lTZ-CRUASHERS.

Specification forming part of Letters Patent No. 51.586, dated December 19, 1865.

To all 'whom 'it may concern:

Be it known that I, WV. W. HANSGOM, of San qFrancisc o,'in the county of 'San Fran-cisco art to make and use the same, reference beinghad to the accompanying drawings, forming part of this specification, in whchv Figure 1 represents a side view of my vin- Vvention Fig. 2, a longitudinal vertical section` of the same. l

Similarletters of reference indicatelike parts. l

This invention relates to a new and improved ``machime for .crushing and pulverizlng ores,

rrocks, &e.; and it consists in the employment or use of a stationary jaw and a movable one,

both jaws having curved faces, and the movable one operated in a novel way, as hereinafter .fully shown and described, whereby the ore or rock may be crushed in a much more' eicient' manner than hitherto and with a less expenditure of power.

A represents a framing, which may be constructed of cast-iron, and is provided with a shaft, B, having a fly-wheel, C, at each end of it and a crank, D, at the center. The fram-V "ing A is provided with a box', E, in which a stationary inclined plate .or jaw, F, is placed,

having a curved inner surface or face side, a, as

shown clearly in Fig. 2. The box E also con,

tains a movable inclined jaw, G, which also' has a curved face, b, (shownin Fig. 2.) This jaw Gr bears against friction-rollers H, which rest on horizontal ledges c on a plate, I, in the box E, said plate being so arranged as to be capable of being adjusted by `set-screws J. The jaw G also has an arm, K, attached to it, which passes through the plate l and the rear of the box E, and has a screw, L, passing through it,

which bears against a spring-fit1, (shown clearly in Fig. 2.)

Nie-a' connecting-rod, one end of which is attached to the crank D of shaft B, and the other end connected with a shaft, O, to the ends of which pendent swinging barsA P P are attached, the upper ends of the latter being tted loosely on a shaft, Q, on the top of box E.V

The shaft O has a toggle-plate, R, attached to or formed with it, and this toggleplate acts against. the lower edge of -the movable jaw Gr.

From the above description it will be seen that as the shaft O is rot-ated the jaw G will be vibrated or moved in a vertical direction, and as the faces of the jaws F G are both inclined, 'cheore or rock which is fed down between them will be subjected to an oblique crushing action, the Obliquity gradually diminishing to nearly a. right-angular crushing action as the ore.

passes down between the jaws, on account of the curvature of the same. By this means the ore 'or rock is crus-hed with a moderate expenditure of power, and, instead'ot being reduced in small globular particles, will be dat orv in small sealy or wafer-like particles, which are much the most desirable form for grind-v ingor amalgamating pans for operating upon crushed ore, and said particles make the most .desirable concrete, as they pack more readily and are more binding. l By the toggle arrangement for`operating the vibrating jaw the latter is vibrated twice at every revolution of the crank, and a quick movement obtained by a moderate movement of the crank-shaft B. The spring M .admits of 'a certain yielding of Athe jaw G, while the position of said jaw maybe regulated by adjusting the screwsl J.

` Having thus described my invention, I claim as new and desire to secure by Letters Patent- The arrangement of the friction-rollers H an the adjustable plate I, substantially as and for the purpose specified.

W. w. Hanscom. 

